Steam generator and draft control for locomotive fire boxes



Oct. 21, 1930. .J. J; REARDON ET STEAM GENERATOR AND DRAFT CONTROL FOR LOCOMOTIVE FIRE BOXES Filed July 10, 1928 E1 J.J.Reardon I C.T.Chaka M mw a atented Qatar, 19 7 A I r l '7 u izrorm qr innnnnonnnnlci-rnniins TQ HAKA, OF MAHA, nnrnesxe I STEAM QENERATQR A1\TD nniirr conirnotron mommies mien oxes Application filed 1 11151 1b, 1a2s; Serial N01 291,521;

This invention relates to an improvement {are disposed at the sides and'ends of the fire in locomotive fire boizesie'nd hasfor'itsobe :b'ox. i gs; v j j ject broad1y, to provide a water container 'The invention consists 'inv part, of a Water L Y c which wino ernero advantageas a steam container 9 adapted tobe 'supported above 5 generator and draft control to thereby cause the rash pit ,et a- 'su'itable-'distence upon the 55*; 1nore effective combustionend a rnateriel sevyholderledges lO'Which ereprovided for the ing in fuel. innerwall '11. at the-respectiversides of the Q One ofthe specific objects is to provide such fi1"e box -v E U f amounting for the container that leakage Will By referringtoFigi lof the drawing it will not occur from, expansion ceuse dby eXces- Abe seen that a ledge 10 consists of a metallic Q sive heat. p1 ate,l2 curved outwardly to provide the Another object is to provide such a mountledge ande Witter pocket 13, en 1a,perture"l4;,, ing for the conduits of the container in the being formed in the well-llt'o permitwater to. Water spaces that flushing may be readily ac fillzseid receptacle, so that'the holder-ledge complished. g Will not become injured} by heat. c :1 i The invention includes pertswvhich may be Referring to Fig- 2 ofthe drawing it will conveniently essembled'i'n the fire box, and is be seen-that the, opposed sides 'or: edges of. intended to operateas a' substitute for the the container V9,d,o'-;not-norn1elly engagethe l brick arch noW generally used in the fire boxes Walls, 11 of the-firebox While; supported by :7 of locomotives, but to provide e more effectivej 'theflledges 1'O',; this feature being of impor; 579

' and convenient nieens thenheretofore'pro 'tence since thecon-tainerhes agreater or less-1' '-vided. V -ferdegreeof,expansionsresultingfroni'heat', 'With the foregoing objects in view and and by]thisconstruction injury,to:the conothers to be mentionedthe invention'pre: teinerq andfvvellsfllvis'avoided:-

sent-s a new and useful construction', connjbi- In order that the Water mey-c1rcu1atefree- Z i nation and arran ement of pa-rtsas described lythrough-the-container 9 ;fora1co1nniunica herein and cleirnedendas shown in the action Withjtheweter spece'syendthet theconi companying drawing-it being understood tainer villnotbecon e injured-Joy{expansion v that changes may be made in form,-siz'e, proilteexcessive heatin the fire box, and that leek portion of parts and ;minor jdetai'1s, said eg will notoccur e'providejconduits 1-5 end-Be .53 the Water container orsteam generator thewater;speces 8;

' changes being determined by the scope of "a -particular mounting :therefor- -to-be dethe invention as claimed, scribed, said conduits extending from. the. e Inthe drawing, 1? 1 is avievvin'longi1,iront and-rear'endsojf thefcontainerland pro- 7 i -tudinel section throughthe-fire box showing viding p'assageways 6m the containengto Y mounted therein and in longitudinal section; Anyjsuitable numbere-off conduits15fmey v Fig. 2 is e sectional View on lime-20f Fig, be {provi led and they m ay heveenygsuitebl'e Z c 1. Fig. '3 is zi'sectionalview showingoneof mounting'goftheir respective ends'whichwill i the Water spaces in section to illustrate {the -;not iresultinleakage., Iheforrn of the con-( f j Z.

i 3- preferred mounting of a. iweterfconduit th'e, duits is circular nfcrossesectionnnd prefer-1Q I- 1 for the inountinglofeconduit; f r

view being on-an enlarged scale. Fig. lisa feblyg eech condu hes-ad; hreeded'terrninel 16, deteilxview illustrating one; of the =holderfore mounting? jengen of the-, ;onteiner,i

ledges for supporting the Water conteiner: theioppositeendofjjeaehgtubular conduitbe 1 Fig. 5 is aside viewof one of the-sleeves used igin'gjslidingly mounted in apecking-e1en en't i Referrin'gnow to the drawing for amore Numeral 18;;indic2ite'sleeves each; adapted.

particular description, the invention is shown to bemountediin eneperture 19 forrnedinithe 1 p c and'de'scribed inconneetion With the the 1001;: outer-Wall 20gend-inner well. 1-1 }of;2tl{ vveter. 1 f c 'u .6, the combustion'chember 7 in communi'caspace 8 pasbestshovv-ri in;Fig; 3ofthe drew-f tion therewith and the Water spaces 8 which jing one-end ofea chfsleeve 18 being threaded 5 as indicated at 21for a threaded connection with the inner wall 11 of the water space.

Numeral 22 indicates an'annular housingsleeve for containing the packing, 17 ,its hol inga threaded connection, indicated at 23,

low shank which receives a conduit havin any end of the sleeve 18.

Numeral 24 indicates a screw-cap which vis mounted upon the inner end of the'annular housing for compressing the packing 1?. I Numeral 25 indicates a second screw-cap for closingthe outerend of the. sleeve '18, the threaded connection for this cap being upon the projection 26 oi the annular plate; or collar 27 which is mounted upon the outer wall 20 of a water space, a packing-ring 28 being employed and engaging the ends of the sleeve 18 and projection 26.

Numerals 29 indicate apertures which are provided in the sides of the sleeve 18 which upon said collar of sheets with water compartments therebetween, a water container in the fire box, conduits extending from the ends of said water container, sleeves threaded in the inner sheets of-the walls extending across the space between the two sheets and extending outward- 1y beyond the outer sheet, said sleeves having openings -therein *communicating with the water spaces ofthe walls-, a packing box held within each sleeve and slidably receiving one of the conduits, a collar received-about the projecting end of. the sleeve and afiixed to the outer sheet, and "cap" removably mounted and acting to close'the outer end o ffthe sleeve. j

Intestimony whereof we. have affixed our JOHN J. REARDON.

CHARLES r. OHAKA.

signatures. J

' permit a movement of water inthe-water space through said sleeve.

' L 'As shown and described itwill be seen that u i j a fluid-tight construction is provided, and no leakage of water i to the fire box from the sleeves 18 or conduits 15 will occur. In operation, the container and conduits, regardless of expansion, wlll not become in ured slnce ithe conduits may have the sliding movements mentioned in the sleeves 18; The packing 17 will be protectedfrominjury since the water in theisleeve will modify its temperature, its

'onlyexposurebeing the heated water moving j through the sleeves 18 from the water spaces. f r 'Accordingto the construction described, the outer ends of all the conduits are 'sliding- T ly mounted, but as is obvious, the conduits atone of the ends of the container could be mounted stationary inthe walls of a water spac e,fand operation would be effective to permit'expansion without injury;

Itwill be noted that the upper side of the, 7

container 9 is of convex form its'lower side being-concave, and on accountlof th s form the gases or a'falr proportion thereof will .be

' detainednnd' consumedin the fire box instead 7 of being "carried therefrom by suction, the

object in view, being to utilize a greater. pr0- portion and prevent the waste o-f'fuel to bet- .;-ter advantage than usual. "However-fin the J is "fpresentinstance we do not wish toliiiiitourselvesto the shape of the'water container'nor to the inclination in the firebox, nor to the in-' ingjl? is I required, the screw-cap 24 may I be i i emove'd for changing-the packing." VVe-c'laimas' our'inventiom Y Inasteam generatora'nd-draft control for. --a locomotive fire box having-walls composed in-a sleeve 18 are accessible, andif new pack- 7 izo 

